In authordate style, an intext citation consists of the author's name, the publication year, and (if relevant) a page number. The following examples illustrate the authordate system.The date (centered, below the instructor's name). Purdue OWL has created a sample paper in Chicago style which can be helpful to look at. As its name suggests, Author-Date uses parenthetical citations in the text to reference the source's author's last name and the year of publication. In general, Chicago-style citations use either an author-date format or numbered notes and a bibliography. Chicago Style Guide. Basic guide to citing sources using Chicago Manual of Style guidelines. This guide provides basic information on how to cite sources and examples for formatting citations in common citation styles. " The same can be done with days (e.g.